Haru is a servant of the Otari family, her family has been their servants for generations, it started when her great great grandfather started working for them. Her and her brother and sister, Masa and Katya work for King Kuzao, Queen Ayano and their son, Prince Kin. Katya works for Ayano, Masa works for Kazuo and Haru works for Kin. (That's all the description I've got, I dont want it to be super long, if you want me to add more just say so)